I'm using a Airtel Volte enabled mobile network, When I make calls via Volte enabled mobile network I don't hear ringtone. however when I disable volte I'm able to hear ringtone. Also the ringtone or alarm tone does not work at times and need restart to fix the issue. This is happening after Android 9.0 Update.
Any fix for the mentioned issue?
I'm Nokia 7 Plus with Latest Android Version 9 Security Patch Level 1 : September.